7
S I G N A T U R E
With any type of pump, 0.03 A differential protection must be fitted for electricity leakage
protection (indicated on the diagrams).
Adjust the value of the thermal relay appropriately depending on the pump current.
For pumps with a single-phase motor:
Thermal protection is incorporated. Installation with a switch is sufficient, in line with the
“Mains connections” diagram.
Use a motor guard with magneto-thermal protection.
The adjustment data for the thermal relay is to be used as a guideline, as the motor is
already fitted with protection.
For 30 V, use a H07 RN-F3 type connection sleeve with a cable section that adapts to
the power of the motor and to the length of the cable.
For pumps with a three-phase motor:
The three phase motors include thermistor protection (PTC). They should be con-
nected to a PTC control module (with the connection diagram depending on the
control module chosen by the installer in each case). Omitting to connect the PTC
protection or an error in this connection invalidates the guarantee in any aspect re-
lated to the motor, understanding that it has been connected incorrectly.
Use a motor guard with magneto-thermal protection.
Protect the pump against overloads with a cut-off switch for the motor.
Adjust the thermal value according to the thermal protection table. For the connection
D (3 x 30 V network), use the protection with the highest indicated value. For the
connection U (3 x 400 V network), use the protection with the lowest indicated value.
Connect the lowest voltage at D and the highest at U for voltage intervals other than
30/400 V; 400/690 V.
For AC, use a H07 RN-F3 type connection sleeve with a cable section that adapts
to the power of the motor and the length of the cable.
The mains cable may only be connected by skilled, authorised personnel.
Before connecting the motor, check the type of fuse required.
Check the correct layout and connection of the earthing cable in the equipment.
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